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Leases | 12 Months Ended
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May 31, 2018
Leases [Abstract] |
Leases | NOTE M — LEASES We lease certain property, plant and equipment under long-term operating lease agreements, some of which provide for increased rental payments based upon increases in the cost-of-living index. The following table illustrates our future minimum lease commitments under all non-cancelable lease agreements, for each of the next five years and in the aggregate, as of May 31, 2018:
May 31, |  |  |  |
(In thousands) |  |  |  |
2019 |  | $ | 57,246 |
2020 |  |  | 38,902 |
2021 |  |  | 28,053 |
2022 |  |  | 18,835 |
2023 |  |  | 15,036 |
Thereafter |  |  | 52,471 |
Total Minimum Lease Commitments |  | $ | 210,543 |
Total rental expense for all operating leases amounted to $64.3 million, $61.3 million and $57.5 million for the fiscal years ended May 31, 2018, 2017 and 2016, respectively.

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- Definition The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -URI http://asc.fasb.org/topic&trid=2208923 + Details
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